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pg_stat_statements: Add wal_buffers_full

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wal_buffers_full tracks the number of times WAL buffers become full,
giving hints to be able to tune the GUC wal_buffers.

Up to now, this information was only available in pg_stat_wal.  With
this field available in WalUsage since eaf502747b, exposing it in
pg_stat_statements is straight-forward, and it offers more granularity
at query level.

pg_stat_statements does not need a version bump as one has been done in
commit cf54a2c002 for this development cycle.

Author: Bertrand Drouvot
Reviewed-by: Ilia Evdokimov
Discussion: https://postgr.es/m/Z6SOha5YFFgvpwQY@ip-10-97-1-34.eu-west-3.compute.internal
This commit is contained in:
Michael Paquier
2025-02-17 13:55:17 +09:00
parent eaf502747b
commit ce5bcc4a9f
4 changed files with 19 additions and 2 deletions
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contrib/pg_stat_statements/expected/oldextversions.out
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@ -385,6 +385,7 @@ AlTER EXTENSION pg_stat_statements UPDATE TO '1.12';
wal_records | bigint | | |
wal_fpi | bigint | | |
wal_bytes | numeric | | |
wal_buffers_full | bigint | | |
jit_functions | bigint | | |
jit_generation_time | double precision | | |
jit_inlining_count | bigint | | |